If someone could magically build a system that allows for the communication to be eavesdropped only by the allowed government agency, my objections would be dramatically reduced. But that's not the way tech works. Building one backdoor makes the entire system, and all users, vulnerable to a whole host of other malicious actors, including hostile foreign nations and unscrupulous hackers. We live in a world today where anyone can be hacked, even major institutions and corporations like NYTimes, Yahoo and Sony. We desperately need systems that are more secure, not less.